# Math Maker 1 vs 天球模擬器

The clearest difference is in-app purchases: 天球模擬器 at none against Math Maker 1's 1. 天球模擬器 also leads on update cadence (every 3 days vs every 34 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Math Maker 1 sells 1 one-off in-app purchase. 天球模擬器 asks for nothing beyond the download.

Math Maker 1 ships an update every 34 months, 天球模擬器 every 3 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Math Maker 1 | 天球模擬器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 days** |
| Size | 2 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janek Soomets](https://appshunter.io/developer/1315295062) | [Han-Chiang Chou](https://appshunter.io/developer/1883578938) |

## What reviewers say

### Math Maker 1

[App page](https://appshunter.io/ios/app/math-maker-1/id1515800877)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Maker 1 upgrade | $3.99 | one-time |


### 天球模擬器

[App page](https://appshunter.io/ios/app/id6760458030)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Maker 1 free?

Math Maker 1 is free to download, with in-app purchases available.

### Is 天球模擬器 free?

天球模擬器 is free to download, with no in-app purchases.

### Do Math Maker 1 or 天球模擬器 have ads?

Neither Math Maker 1 nor 天球模擬器 shows ads.

### Which is updated more often, Math Maker 1 or 天球模擬器?

Math Maker 1 ships an update every 34 months, and 天球模擬器 every 3 days. Most recently, Math Maker 1 was updated on October 27, 2026 and 天球模擬器 on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*